<template>
  <p>{{ time }}</p>
</template>

<script>
export default {
  data() {
    return {
      time: '',
      flag: false
    }
  },
  mounted() {
    let time = setInterval(() => {
      if (this.flag == true) {
        clearInterval(time)
      }
      this.timeDown()
    }, 500)
  },
  props: {
    endTime: {
      type: String
    }
  },
  methods: {
    timeDown() {
      const endTime = new Date(this.endTime)
      const nowTime = new Date()
      let leftTime = parseInt(
        (endTime.getTime() + 24 * 60 * 60 * 1000 - nowTime.getTime()) / 1000
      )
      // if (leftTime < 0 || leftTime > 86400) {
      //   return false
      // }
      let d = parseInt(leftTime / (24 * 60 * 60))
      let h = this.formate(parseInt((leftTime / (60 * 60)) % 24))
      let m = this.formate(parseInt((leftTime / 60) % 60))
      let s = this.formate(parseInt(leftTime % 60))
      if (leftTime <= 0) {
        this.flag = true
        this.$emit('time-end', this.time)
      } else {
        // this.time = `${d}天${h}小时${m}分${s}秒`
        this.time = `${h}:${m}:${s}`
      }
    },
    formate(time) {
      if (time >= 10) {
        return time
      } else {
        return `0${time}`
      }
    }
  }
}
</script>
